Multiple choice

A small densely stained barr body appears in a female cell nuclei. What will be the nature of this body?

  1. Constitutive euchromatin

  2. Facultative euchromatin

  3. Constitutive heterochromatin

  4. Facultative heterochromatin

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The regions of DNA packed in facultative heterochromatin will not be consistent between the cell types within a species, and thus is a sequence in one cell that is packed in facultative heterochromatin.